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[Pigmented villonodular synovitis of the knee]
F Smets1, W Kurth, J M Crielaard
1Université de Liège, Belgique.
Abstract:
This case report is concerned with a 30 year old patient diagnosed with pigmented villonodular synovitis (PVNS) in the knee. The patient underwent an orthopedic surgical operation to remove the lesions. PVNS is a rare proliferative disorder, mostly benign and affecting the knee; its aetiology remains unclear. It represents a medical challenge because of non-specific symptoms that delay the diagnosis with a very high rate of recurrence. MRI imaging is necessary to explore the lesions, but the final diagnosis can only be made after anatomopathologic analysis of the excised lesions. When multiple lesions are present, the treatment consists of their excision by arthrotomy, or by arthroscopy if the disease is localized.
Insights
Pigmented villonodular synovitis (PVNS) is a rare knee disorder. Surgical excision is the primary treatment for PVNS, though recurrence is common.
Area of Science:
- Orthopedics
- Pathology
Background:
- Pigmented villonodular synovitis (PVNS) is a rare, typically benign proliferative disorder affecting the knee joint.
- The exact etiology of PVNS remains unknown, presenting diagnostic and therapeutic challenges due to non-specific symptoms and high recurrence rates.
Observation:
- A case report details a 30-year-old patient diagnosed with knee PVNS.
- The patient underwent orthopedic surgery for lesion removal.
Findings:
- Magnetic Resonance Imaging (MRI) is crucial for lesion visualization.
- Definitive diagnosis of PVNS requires anatomopathologic analysis of surgically excised tissue.
Implications:
- Surgical excision via arthrotomy or arthroscopy is the standard treatment for PVNS.
- Early diagnosis and complete lesion removal are critical to minimize PVNS recurrence.
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